Paraparaumu, Waikanae and Ōtaki Libraries will open from 10am-5pm Monday through Friday, and 10am-4pm on Saturdays. All three will be closed on Sunday.
Paekākāriki Library will resume normal opening hours Monday, Wednesday and Saturday.
"The health and safety of our visitors and our staff are our top priority and these temporary restrictions will help us with new safety measures like physical distancing and increased cleaning schedules."
Public computers and tablets will be cleaned between use and all SMART libraries across the Wellington region will either clean or quarantine returned items for a minimum of three days before they are put back on the shelves.
"We will be doing our part to play it safe but we need our visitors to carefully follow government guidance for life at alert level 2.
"Maintain physical distance from people you don't know, stay at home if you don't feel well and wash or sanitise your hands before and after visiting us," Mr Littleworth said.
"All items currently on loan have been automatically extended through to June 4 so there's no need to rush your books back.
"Our additional precautions will mean some delays for users and we ask for your patience and kindness as we transition to a new, safer normal."